16871505560 has 192 divisors, whose sum is σ = 49624747200. Its totient is φ = 5107221504.

The previous prime is 16871505557. The next prime is 16871505571. The reversal of 16871505560 is 6550517861.

It is a happy number.

It is a super-2 number, since 2×16871505560² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 571646 + ... + 600434.

It is an arithmetic number, because the mean of its divisors is an integer number (258462225).

Almost surely, 2^16871505560 is an apocalyptic number.

16871505560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16871505560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24812373600).

16871505560 is an abundant number, since it is smaller than the sum of its proper divisors (32753241640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16871505560 is a wasteful number, since it uses less digits than its factorization.

16871505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28850 (or 28839 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 16871505560 in words is "sixteen billion, eight hundred seventy-one million, five hundred five thousand, five hundred sixty".